2202665 has 8 divisors (see below), whose sum is σ = 2651208. Its totient is φ = 1756800.

The previous prime is 2202631. The next prime is 2202677. The reversal of 2202665 is 5662022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1194649 + 1008016 = 1093^2 + 1004^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2202665 - 2⁶ = 2202601 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2202665.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2639 + ... + 3371.

It is an arithmetic number, because the mean of its divisors is an integer number (331401).

2^2202665 is an apocalyptic number.

It is an amenable number.

2202665 is a deficient number, since it is larger than the sum of its proper divisors (448543).

2202665 is an equidigital number, since it uses as much as digits as its factorization.

2202665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2202665 is about 1484.1377968369. The cubic root of 2202665 is about 130.1116398001. Note that the first 3 decimals are identical.

Adding to 2202665 its reverse (5662022), we get a palindrome (7864687).

The spelling of 2202665 in words is "two million, two hundred two thousand, six hundred sixty-five".